The differential, or Final Drive as it's called, is said to be lubricated for life. Some vehicles seem to be well into their second life, so it may be worthwhile to try to replace at least some of the lubricant. To access the fill plug it is necessary to remove the transmission Pendulum Mount. The plug accepts a 17mm allen or hex key.


Location of plug.

The plug has a magnet on it to capture small metal particles. Carefully clean it off.


Magnet on plug.


Cleaned magnet.

Some old lubricant can be extracted by using a vacuum device and a length of tubing. Refill with new lubricant until it runs out of the hole.